ryu: update kernel prebuilt
am: 49aecf3125

Change-Id: I09e3cf6f7aca667a297843830f8ba25122f8ebd5
tree: 2709f7e0a626d7727fe7005df535b6989089b187
  1. Image.fit
  2. Image.fit.kasan
  3. push-kernel.sh